/* =====================================================================
   Innovar Cobros · Estilos personalizados
   ===================================================================== */

:root {
  --sidebar-w: 240px;
  --topbar-h: 60px;
  --color-bg: #f4f6fb;
  --color-sidebar: #ffffff;
  --color-border: #e6e8ef;
  --color-text: #1f2937;
  --color-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-soft: #eef4ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14.5px;
  -webkit-font-smoothing: antialiased;
}

/* =================== LOGIN =================== */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 40%, #2563eb 100%);
  padding: 1rem;
}
.login-card {
  background: #fff;
  border-radius: 14px;
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
  max-width: 380px;
  width: 100%;
}
.login-brand {
  text-align: center;
  margin-bottom: 2rem;
}
.login-logo {
  max-width: 240px;
  height: auto;
  display: block;
  margin: 0 auto 0.75rem;
}
.login-brand p {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin: 0;
}

/* =================== APP SHELL =================== */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-sidebar {
  width: var(--sidebar-w);
  background: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  transition: transform 0.25s ease;
}

.app-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--color-border);
}
.app-brand-link {
  display: block;
  text-decoration: none;
  line-height: 0;
}
.app-brand-logo {
  max-width: 170px;
  height: auto;
  display: block;
}

.app-nav {
  flex: 1;
  padding: 0.75rem 0.5rem;
  overflow-y: auto;
}

.app-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  color: var(--color-text);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.92rem;
  margin-bottom: 2px;
  transition: background 0.15s;
}
.app-nav-link:hover {
  background: #f3f4f6;
  color: var(--color-text);
}
.app-nav-link.active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 600;
}
.app-nav-link i {
  font-size: 1.05rem;
  width: 1.25rem;
  text-align: center;
}

.app-sidebar-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--color-border);
}

/* =================== MAIN =================== */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-topbar {
  height: var(--topbar-h);
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

.app-page-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
}

.app-content {
  padding: 1.5rem;
  flex: 1;
}

/* =================== KPI CARDS =================== */
.kpi-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.kpi-card .kpi-label {
  color: var(--color-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}
.kpi-card .kpi-value {
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.1;
}
.kpi-card .kpi-foot {
  color: var(--color-muted);
  font-size: 0.82rem;
}
.kpi-card.kpi-success .kpi-value { color: #15803d; }
.kpi-card.kpi-warning .kpi-value { color: #b45309; }
.kpi-card.kpi-danger  .kpi-value { color: #b91c1c; }
.kpi-card.kpi-primary .kpi-value { color: var(--color-primary); }

/* =================== TABLES =================== */
.card {
  border-color: var(--color-border);
  border-radius: 12px;
}
.table-wrap {
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.table-wrap .table {
  margin: 0;
}
.table > thead {
  background: #f9fafb;
}
.table > thead th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  padding: 0.85rem 1rem;
  font-weight: 600;
}
.table > tbody td {
  padding: 0.85rem 1rem;
  vertical-align: middle;
  border-color: var(--color-border);
}

/* =================== RESPONSIVE =================== */
@media (max-width: 991px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.is-open {
    transform: translateX(0);
    box-shadow: 0 0 30px rgba(0,0,0,0.2);
  }
  .app-main {
    margin-left: 0;
  }
}